There seem to be a new documentation. However, I would need to get hold of the old one that explains extra information such as waytype, waycategory, waypoints, steepness, suitability, surface, roadtype etcetera. I have ORS route results with numbers for some of these variables. But I cannot explain what the values mean? This was available about a month ago.
You can find the old documentation if you follow the link for older core versions.
On the right hand in the “Responses” Tab for any endpoint you can check descriptions for the returned parameters if you click on the questionmark.
For the encoded extra info you can also follow the link on the righthand side. Or click here:
This is still available in the same place it was before. Which place are you looking for it?